免费无码国产免费172,日韩美女啪啪不卡视频,免费顶级欧美熟妇高潮xxxxx,竹菊影视一区二区在线

Physical and Chemical inspection center of Xingtai Steel to Participate in the National Laboratory Proficiency Testing results for "satisfied"
  Updatetime:2014-10-23 Hits:

  In order to ensure the accuracy of the laboratory testing data, Physical and Chemical inspection center of Xingtai Steel actively take part in international and domestic laboratory proficiency testing organized by China National Accreditation Service for Conformity Assessment(CNAS). In 2014, Xingtai Steel applied for four projects such as calcium silicon alloy chemical composition analysis, spectrum determination of chemical composition in low alloy steel and metal material bars tensile test and so on which has been informed two evaluation results with "satisfied" through a series of strict examinations for unified samples according regulations and submitting inspection reports according to relevant requirements by affiliated product testing room and central lab.